Table 5 Parameterization for VORTEX model used to determine the probabilities of extinction within 40 generations17 of humpback dolphins, per generation length of 20.4 years44.
Parameters | Values |
|---|---|
number of iterations | 2000 |
number of years | 816 |
reproductive system | polygynous |
age of first offspring for females | 9 |
age of first offspring for males | 11 |
maximum age of reproduction | 38 |
maximum number of broods per year | 1 |
maximum number of progeny per brood | 1 |
sex ratio at birth - in % males | 50% |
% males in breeding pool | 100% |
reproductive rates | 28.57% |
environmental variation in % breeding | 30% |
initial population size (N0) | =initial carrying capacity (K0) |
